クチナシ果実の発育にともなう成分含量の変化

概要

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The relationship between the growth of the fruit of Gardenia jasminoides f. grandiflora and the formation of its main secondary metabolites, crocin and geniposide, was investigated. The growth of the fruit appeared to be divided into two stages. In the first stage (1-6 weeks after flowering), the fruit weight as well as the geniposide content increases rapidly but no crocin was detected. In the second stage (8-23 weeks after flowering), the geniposide content per fresh weight of the fruit hardly changed, while the production of crocin began a few weeks after the beginning of this stage and its content increased almost linearly with time until full ripeness. TLC analyses of the fruit extracts failed to detect, at any growth stage, the presence of unoxygenated carotene that had been proposed as a possible precursor of crocin. However, the organ culture showed that crocin is produced de novo in the detached fruits, suggesting that crocin in Gardenia fruits might be synthesized through an unknown colorless precursor.
公益社団法人日本薬学会の論文
1980-09-25